1315345305 has 16 divisors (see below), whose sum is σ = 2107650240. Its totient is φ = 700484928.

The previous prime is 1315345279. The next prime is 1315345307. The reversal of 1315345305 is 5035435131.

It is not a de Polignac number, because 1315345305 - 2⁸ = 1315345049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1315345307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53950 + ... + 74439.

It is an arithmetic number, because the mean of its divisors is an integer number (131728140).

Almost surely, 2^1315345305 is an apocalyptic number.

1315345305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1315345305 is a deficient number, since it is larger than the sum of its proper divisors (792304935).

1315345305 is a wasteful number, since it uses less digits than its factorization.

1315345305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129080.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 1315345305 is about 36267.6895459305. The cubic root of 1315345305 is about 1095.6703928421.

The spelling of 1315345305 in words is "one billion, three hundred fifteen million, three hundred forty-five thousand, three hundred five".